Total monthly cost aprox: £160[You could lower this cost further by loosing the Red Hat license fees]

We wrote a custom plugin to allow the media library to upload direct into Rackspace Cloud Files, improving loading times through CDN, and solving the problem of sharing files between servers We also serve as many of the static theme files as possible from the Rackspace CDN.

Incredibly interested in “We wrote a custom plugin to allow the media library to upload direct into Rackspace Cloud Files”. You skipped local /wp-content/ completely? Chances you could release this to public?